### Please describe the problem.

A new kind of an Android device -- a new attempt to make use of git-annex on it ;)  This time BOOX Tablet Tab Ultra C Pro ePaper Tablet PC 10.3 with Termux installed from Google Play store and reporting

```
~ $ pwd
/data/data/com.termux/files/home

~ $ df . -h
Filesystem       Size Used Avail Use% Mounted on
/dev/block/dm-10 108G 3.9G  104G   4% /data/data/com.google.android.gms

~ $ mount | grep data/data/com
/dev/block/dm-10 on /data/data/com.termux type f2fs (rw,lazytime,seclabel,nosuid,nodev,noatime,background_gc=on,discard,no_h
eap,user_xattr,inline_xattr,acl,inline_data,inline_dentry,flush_merge,extent_cache,mode=adaptive,active_logs=6,reserve_root=
32768,resuid=0,resgid=1065,inlinecrypt,alloc_mode=default,fsync_mode=nobarrier)
/dev/block/dm-10 on /data/data/com.google.android.gms type f2fs (rw,lazytime,seclabel,nosuid,nodev,noatime,background_gc=on,
discard,no_heap,user_xattr,inline_xattr,acl,inline_data,inline_dentry,flush_merge,extent_cache,mode=adaptive,active_logs=6,r
eserve_root=32768,resuid=0,resgid=1065,inlinecrypt,alloc_mode=default,fsync_mode=nobarrier)

~ $ uname -a
Linux localhost 4.14.190-perf-gb4109db-dirty #439 SMP PREEMPT Wed Apr 10 19:23:59 CST 2024 aarch64 Android
```

but installation failed with message similar to the one I get now if I try to install extracted git-annex:

```
~ $ git-annex.linux/runshell git-annex
Running on Android.. Tuning for optimal behavior.
/data/data/com.termux/files/home/git-annex.linux/bin/xargs: 2: exec: /data/data/com.termux/files/home/git-annex.linux/exe/xa
rgs: Permission denied
```

<details>
<summary>and here is via bash -x </summary> 

```shell
~ $ bash -x git-annex.linux/runshell git-annex
+ GIT_ANNEX_PACKAGE_INSTALL=
+ set -e
+ orig_IFS='
'
+ unset IFS
++ uname -o
+ os=Android
++ dirname git-annex.linux/runshell
+ base=git-annex.linux
+ '[' '!' -d git-annex.linux ']'
+ '[' '!' -e git-annex.linux/bin/git-annex ']'
++ pwd
+ orig=/data/data/com.termux/files/home
+ cd git-annex.linux
++ pwd
+ base=/data/data/com.termux/files/home/git-annex.linux
+ cd /data/data/com.termux/files/home
+ echo /data/data/com.termux/files/home/git-annex.linux
+ grep -q '[:;]'
+ tbase=
+ '[' -z '' ']'
+ '[' '!' -e /data/data/com.termux/files/home/.ssh/git-annex-shell ']'
+ '[' '!' -e /data/data/com.termux/files/home/.ssh/git-annex-wrapper ']'
+ GIT_ANNEX_APP_BASE=/data/data/com.termux/files/home/git-annex.linux
+ export GIT_ANNEX_APP_BASE
+ ORIG_PATH=/data/data/com.termux/files/usr/bin:/product/bin:/apex/com.android.runtime/bin:/apex/com.android.art/bin:/system
_ext/bin:/system/bin:/system/xbin:/odm/bin:/vendor/bin:/vendor/xbin
+ export ORIG_PATH
+ PATH=/data/data/com.termux/files/home/git-annex.linux/bin:/data/data/com.termux/files/usr/bin:/product/bin:/apex/com.andro
id.runtime/bin:/apex/com.android.art/bin:/system_ext/bin:/system/bin:/system/xbin:/odm/bin:/vendor/bin:/vendor/xbin:/data/da
ta/com.termux/files/home/git-annex.linux/extra
+ export PATH
++ cat /data/data/com.termux/files/home/git-annex.linux/libdirs
+ for lib in $(cat "$base/libdirs")
+ GIT_ANNEX_LD_LIBRARY_PATH=/data/data/com.termux/files/home/git-annex.linux//lib/aarch64-linux-gnu:
+ export GIT_ANNEX_LD_LIBRARY_PATH
+ GIT_ANNEX_DIR=/data/data/com.termux/files/home/git-annex.linux
+ export GIT_ANNEX_DIR
+ ORIG_GCONV_PATH=
+ export ORIG_GCONV_PATH
++ cat /data/data/com.termux/files/home/git-annex.linux/gconvdir
+ GCONV_PATH=/data/data/com.termux/files/home/git-annex.linux//usr/lib/aarch64-linux-gnu/gconv
+ export GCONV_PATH
+ ORIG_GIT_EXEC_PATH=
+ export ORIG_GIT_EXEC_PATH
+ GIT_EXEC_PATH=/data/data/com.termux/files/home/git-annex.linux/git-core
+ export GIT_EXEC_PATH
+ ORIG_GIT_TEMPLATE_DIR=
+ export ORIG_GIT_TEMPLATE_DIR
+ GIT_TEMPLATE_DIR=/data/data/com.termux/files/home/git-annex.linux/templates
+ export GIT_TEMPLATE_DIR
+ ORIG_MANPATH=
+ export ORIG_MANPATH
+ MANPATH=/data/data/com.termux/files/home/git-annex.linux/usr/share/man:
+ export MANPATH
+ unset LD_PRELOAD
+ ORIG_LOCPATH=
+ export ORIG_LOCPATH
+ '[' -z '' ']'
+ '[' -z '' ']'
++ cat /data/data/com.termux/files/home/git-annex.linux/buildid
++ echo /data/data/com.termux/files/home/git-annex.linux
++ tr / _
+ locpathbase=fd647a438576b806711ffed585497e8d__data_data_com.termux_files_home_git-annex.linux
++ echo fd647a438576b806711ffed585497e8d__data_data_com.termux_files_home_git-annex.linux
++ md5sum
++ cut -d ' ' -f 1
+ locpathmd5=01ac43587c3dc29b384e1f7525ef0eb8
+ '[' -n 01ac43587c3dc29b384e1f7525ef0eb8 ']'
+ locpathbase=01ac43587c3dc29b384e1f7525ef0eb8
+ LOCPATH=/data/data/com.termux/files/home/.cache/git-annex/locales/01ac43587c3dc29b384e1f7525ef0eb8
+ export LOCPATH
+ for localecache in $HOME/.cache/git-annex/locales/*
++ cat /data/data/com.termux/files/home/.cache/git-annex/locales/01ac43587c3dc29b384e1f7525ef0eb8/base
+ cachebase=/data/data/com.termux/files/home/git-annex.linux
+ '[' '!' -d /data/data/com.termux/files/home/git-annex.linux ']'
++ cat /data/data/com.termux/files/home/.cache/git-annex/locales/01ac43587c3dc29b384e1f7525ef0eb8/buildid
++ cat /data/data/com.termux/files/home/git-annex.linux/buildid
+ '[' fd647a438576b806711ffed585497e8d '!=' fd647a438576b806711ffed585497e8d ']'
+ '[' '!' -d /data/data/com.termux/files/home/.cache/git-annex/locales/01ac43587c3dc29b384e1f7525ef0eb8 ']'
+ useproot=
+ case "$os" in
+ '[' -e /data/data/com.termux/files/home/git-annex.linux/git ']'
+ echo 'Running on Android.. Tuning for optimal behavior.'
Running on Android.. Tuning for optimal behavior.
+ cd /data/data/com.termux/files/home/git-annex.linux
+ find .
+ grep git
+ grep -v git-annex
+ xargs rm -rf
/data/data/com.termux/files/home/git-annex.linux/bin/xargs: 2: exec: /data/data/com.termux/files/home/git-annex.linux/exe/xa
rgs: Permission denied
+ grep -v git-remote-gcrypt
+ grep -v git-remote-tor-annex
```

</details>

and my foo here is not strong enough to deduce what it is really not happy about

### What steps will reproduce the problem?

- get boox
- try to install git-annex from termux

